Polynomial addition using link List

#include"stdafx.h"
#include <iostream>
#include <conio.h>
using namespace std;
class LinkList
{
protected:
struct node
{
int exp;
int info;
struct node* next;
}; typedef struct node * NODEPTR;
NODEPTR listPtr;
public:
LinkList(){
	  listPtr=0;
}
int IsEmpty();
void PushPoly(int cof,int ex);
//void Mult(list);
void Add(LinkList Poly1 , LinkList Poly2);
void Display(int num);
};
void LinkList::PushPoly(int cof , int ex){
 NODEPTR p;
 p  = new node;
 p->info=cof;
 p->exp=ex;
 p->next=listPtr;
 listPtr=p;

}
void LinkList::Add(LinkList Poly1,LinkList Poly2){
	int count1 , count2;
	LinkList PolyR;
	NODEPTR p,q,r;
	for(p=Poly1.listPtr;  p!=0 ;  p=p->next)	{
	count1++;
	}
	for(q=Poly2.listPtr;  q!=0 ;  q=q->next)
	count2++;
	
	if(count1>count2)
	{

	for(int i=0;i<=count1;i++)
	PolyR.PushPoly(0,0);
	}
	else if(count2>count1)
	{
		for(int i=1;i<=count2;i++)
		PolyR.PushPoly(0,0);

	}
	else
	{
for(int i=1;i<=count1;i++)
	PolyR.PushPoly(0,0);

	}
	
	for(p=Poly1.listPtr, q=Poly2.listPtr,r=PolyR.listPtr;  p!=0 && q!=0&&r!=0;  p=p->next, q=q->next, r=r->next)
	{

		if(p->exp==q->exp)
		{
			r->info = p->info + q->info;
			r->exp=p->exp;
		}
		else
		{
			r->info = p->info;
			r->exp=p->exp;
		}
	}
	PolyR.Display(3);
	cout<<"result "<<endl;

}
void LinkList::Display(int num){
	NODEPTR p;
	cout<<"Polynomial	"<<num<<endl<<endl;
		for(p=listPtr;p!=0;p=p->next){
		cout <<p->info<<" x^"<<p->exp<<(p->next!=0?" + ":" ");
		}cout<<endl;
}


int main(){
LinkList poly1,poly2;
poly1.PushPoly(4,3);
poly1.PushPoly(5,2);
poly1.PushPoly(6,1);
poly2.PushPoly(6,3);
poly2.PushPoly(5,2);
poly2.PushPoly(7,1);

poly1.Display(1);
cout<<endl;
poly2.Display(2);
cout<<endl;
poly1.Add(poly1,poly2);
//cout <<endl<<endl;
//poly1.multi(poly2);
//poly1.evaluate();

getch();
return 0;
}

My addition function not work y ?????Help me plxxxx

I do it